diff --git a/thot.asd b/thot.asd
index 79fd6ea..a8ef4bc 100644
--- a/thot.asd
+++ b/thot.asd
@@ -13,7 +13,7 @@
"bordeaux-threads"
"babel-stream"
"cffi-dirent"
- "cffi-epoll"
+ #+linux "cffi-epoll"
"cffi-socket"
"cl-debug"
"cl-stream"
@@ -24,5 +24,5 @@
((:file "package")
(:file "thot" :depends-on ("package"))
(:file "thot-simple" :depends-on ("thot"))
- (:file "thot-threaded" :depends-on ("thot-simple"))
- (:file "thot-epoll" :depends-on ("thot-threaded"))))
+ #+threads (:file "thot-threaded" :depends-on ("thot-simple"))
+ #+linux (:file "thot-epoll" :depends-on ("thot-threaded"))))